DEX410R - Super Low Traction setup help

[VinnyTheBully]

I just won this kit given by Dynamic Hobbies in Ottawa, Canada!!!!

The track I run at is very bumpy, dusty (read low traction), tight and technical. Can anyone suggest a starting setup (especially diff oils).

http://www.youtube.com/watch?v=becZ64O4kec

A video of the A-Main of our last "big" race for reference.

Thanks in advance.

Vinny The Bully